CN102983828A - Filter of impulse power output port of motor speed controller - Google Patents
Filter of impulse power output port of motor speed controller Download PDFInfo
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- CN102983828A CN102983828A CN2012104859091A CN201210485909A CN102983828A CN 102983828 A CN102983828 A CN 102983828A CN 2012104859091 A CN2012104859091 A CN 2012104859091A CN 201210485909 A CN201210485909 A CN 201210485909A CN 102983828 A CN102983828 A CN 102983828A
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- mode inductance
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Abstract
The invention relates to a filter of an impulse power output port of motor speed controllers. The filter comprises a passive filter circuit and whole shielding of the circuit, and the filter is characterized in that the passive filter circuit is an interference reflection circuit which is fixed in a shielding casing, and the interference reflection circuit is formed by a first common mode inductor and a second common mode inductor which are provided with same winding numbers and connected through a tandem connection line. The filter can be suitable to power output ends of the motor speed controllers in different types, protects winding insulation of a motor of servo systems in different types, simultaneously restrains conducted interference of a power output line of the motor speed controller, effectively reduces radiated interference of the servo system, and greatly improves an electromagnetic environment of site sensitive equipment.
Description
Technical field
The present invention relates to a kind of impulse disturbances filter, belong to electric and electronic technical field, specifically a kind of filter of machine governor pulse power output port.
Background technology
Frequency converter and driver are more and more extensively adopted by industry and military electronic system, are mainly used in electric machine speed regulation control and driving, but merger is machine governor series.Machine governor generally adopts controlled PWM modulation system output pulse power drive motors, to realize the accurate control of servo system turned position.Because this drive pattern has impulse disturbances, disturb the conduction on the power stage line, cause servo system in the following frequency range of 100MHz very large radiated interference to be arranged, had a strong impact on the normal operation of field control system; Be inductive load owing to the motor winding simultaneously, under the effect of steep front pulse electric current, the back electromotive force that operating voltage appears being several times as much as in motor winding two ends causes the insulation harm of motor winding, or causes motor to damage.The disturbance restraining method that generally adopts is for only installing metal screen layer additional to the power stage line.Owing to the power stage line is not carried out conductive interference suppression, therefore the machine governor of the power stage line being grown, this method can not solve the insulation harm problem of motor winding, more can not the establishment servo system in the radiated interference of the following frequency range of 100MHz.
Summary of the invention
The purpose of this invention is to provide and a kind ofly can protect the motor winding, can effectively reduce again that machine governor pulse power output line disturbs and the filter of a kind of machine governor pulse power output port of servo system radiated interference.
To achieve these goals, technical scheme of the present invention is: a kind of filter of machine governor pulse power output port, comprise the bulk shielding of passive filter circuit and circuit, it is characterized in that: passive filter circuit is a noisy reflection circuit, the noisy reflection circuit is fixed in the shield shell, and the noisy reflection circuit is connected and composed by the serial connection line by two the first common mode inductance, the second common mode inductances with identical winding number.
Described shield shell mainly consists of the tetragonal body structure by housing and cover plate, and there are common mode inductance input cable-through hole and common mode inductance output cable-through hole in the housing two ends, and the passive filter circuit two ends connect respectively common mode inductance input cable-through hole and common mode inductance output cable-through hole.
All plate on described shield shell surface has the weldability metal, is used for reducing the electromagnetic radiation to external environment condition of common mode inductance and common mode inductance.
Advantage of the present invention is the power take-off that can adapt to dissimilar machine governors, and the motor winding insulation of dissimilar servo systems is protected; The conducted interference of machine governor power stage line is inhibited, effectively reduces the radiated interference of servo system, greatly improved the electromagnetic environment of on-the-spot sensitive equipment.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is machine governor output filter embodiment circuit diagram.
Fig. 2 is machine governor output filter embodiment shell structure figure.
Among the figure: 1, the first common mode inductance; 2, the second common mode inductance; 3, serial connection line; 4, housing; 5, common mode inductance input cable-through hole; 6, common mode inductance output cable-through hole; 7, cover plate.
Embodiment
As shown in Figure 1, a kind of filter of machine governor pulse power output port, comprise the bulk shielding of passive filter circuit and circuit, passive filter circuit is a noisy reflection circuit, the noisy reflection circuit is fixed in the shield shell, and the noisy reflection circuit is connected and composed by serial connection line 3 by two the first common mode inductance 1, the second common mode inductances 2 with identical winding number.The first common mode inductance 1 has been realized the large inductance of equivalent common mode with the line 3 that is connected in series of the second common mode inductance 2, reduced the winding inter-turn distributed capacitance, realize wide-band, the high insertion loss filtering of common mode disturbances on the power drive line, the choking effect of while by the leakage inductance of the first common mode inductance 1 and the second common mode inductance 2 reduces the time rate of change of output pulses rising edge and trailing edge, thereby reduces the back electromotive force at motor winding two ends.
As shown in Figure 2, shield shell mainly consists of the tetragonal body structure by housing 4 and cover plate 7, there are common mode inductance input cable-through hole 5 and common mode inductance output cable-through hole 6 in housing 4 two ends, the passive filter circuit two ends connect respectively common mode inductance input cable-through hole 5 and common mode inductance output cable-through hole 6, common mode inductance input cable-through hole 5 and common mode inductance output cable-through hole 6 are bi-directional configuration, determine input and output by signal source principal direction, all plate on the shield shell surface has the weldability metal, is used for reducing the electromagnetic radiation to external environment condition of the first common mode inductance 1 and the second common mode inductance 2.
The parts that present embodiment is not described in detail and structure belong to well-known components and common structure or the conventional means of the industry, here not one by one narration.
Claims (3)
1. the filter of a machine governor pulse power output port, comprise the bulk shielding of passive filter circuit and circuit, it is characterized in that: passive filter circuit is a noisy reflection circuit, the noisy reflection circuit is fixed in the shield shell, and the noisy reflection circuit is connected and composed by the serial connection line by two the first common mode inductance (1), the second common mode inductances (2) with identical winding number.
2. the filter of a kind of machine governor pulse power output port according to claim 1, it is characterized in that: described shield shell mainly consists of the tetragonal body structure by housing (4) and cover plate (7), there are common mode inductance input cable-through hole and common mode inductance output cable-through hole in the housing two ends, and the passive filter circuit two ends connect respectively common mode inductance input cable-through hole and common mode inductance output cable-through hole.
3. the filter of a kind of machine governor pulse power output port according to claim 1, it is characterized in that: all plate on described shield shell surface has the weldability metal, is used for reducing the electromagnetic radiation to external environment condition of common mode inductance and common mode inductance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104859091A CN102983828A (en) | 2012-11-26 | 2012-11-26 | Filter of impulse power output port of motor speed controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104859091A CN102983828A (en) | 2012-11-26 | 2012-11-26 | Filter of impulse power output port of motor speed controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102983828A true CN102983828A (en) | 2013-03-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104859091A Pending CN102983828A (en) | 2012-11-26 | 2012-11-26 | Filter of impulse power output port of motor speed controller |
Country Status (1)
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| CN (1) | CN102983828A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104317369A (en) * | 2014-10-17 | 2015-01-28 | 国家电网公司 | Anti-electromagnetic interference communication port for high voltage relay protection microcomputer system |
| CN109595081A (en) * | 2018-12-29 | 2019-04-09 | 盐城赛福汽车零部件有限公司 | Agricultural equipment Diesel engine Digital governor |
| CN109861509A (en) * | 2018-12-07 | 2019-06-07 | 天津津航计算技术研究所 | A kind of electric source filter circuit inhibiting aeronautical data loading device electromagnetic interference |
| CN110739807A (en) * | 2019-10-14 | 2020-01-31 | 江西清华泰豪三波电机有限公司 | device for filtering output line of motor |
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| KR20100008242A (en) * | 2008-07-15 | 2010-01-25 | 주식회사 유라코퍼레이션 | Electromagnetic filter for testing electromagnetic interference of electric device of vehicle |
| EP2148437A1 (en) * | 2008-07-23 | 2010-01-27 | Hamilton Sundstrand Corporation | Lightweight electromagnetic interference filter |
| CN201656757U (en) * | 2009-12-29 | 2010-11-24 | 西安开容电子技术有限责任公司 | Multi-path input/output AC/DC power supply and signal wire filtering filter |
| CN102570783A (en) * | 2010-12-20 | 2012-07-11 | 西安开容电子技术有限责任公司 | Design method of filter at output end of frequency converter |
| CN102570462A (en) * | 2010-12-20 | 2012-07-11 | 西安开容电子技术有限责任公司 | Input and output high isolation filter and design method thereof |
| CN203039651U (en) * | 2012-11-26 | 2013-07-03 | 西安开容电子技术有限责任公司 | Filter of pulse power output port of motor speed regulator |
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2012
- 2012-11-26 CN CN2012104859091A patent/CN102983828A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100008242A (en) * | 2008-07-15 | 2010-01-25 | 주식회사 유라코퍼레이션 | Electromagnetic filter for testing electromagnetic interference of electric device of vehicle |
| EP2148437A1 (en) * | 2008-07-23 | 2010-01-27 | Hamilton Sundstrand Corporation | Lightweight electromagnetic interference filter |
| CN201656757U (en) * | 2009-12-29 | 2010-11-24 | 西安开容电子技术有限责任公司 | Multi-path input/output AC/DC power supply and signal wire filtering filter |
| CN102570783A (en) * | 2010-12-20 | 2012-07-11 | 西安开容电子技术有限责任公司 | Design method of filter at output end of frequency converter |
| CN102570462A (en) * | 2010-12-20 | 2012-07-11 | 西安开容电子技术有限责任公司 | Input and output high isolation filter and design method thereof |
| CN203039651U (en) * | 2012-11-26 | 2013-07-03 | 西安开容电子技术有限责任公司 | Filter of pulse power output port of motor speed regulator |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104317369A (en) * | 2014-10-17 | 2015-01-28 | 国家电网公司 | Anti-electromagnetic interference communication port for high voltage relay protection microcomputer system |
| CN109861509A (en) * | 2018-12-07 | 2019-06-07 | 天津津航计算技术研究所 | A kind of electric source filter circuit inhibiting aeronautical data loading device electromagnetic interference |
| CN109595081A (en) * | 2018-12-29 | 2019-04-09 | 盐城赛福汽车零部件有限公司 | Agricultural equipment Diesel engine Digital governor |
| CN110739807A (en) * | 2019-10-14 | 2020-01-31 | 江西清华泰豪三波电机有限公司 | device for filtering output line of motor |
| CN110739807B (en) * | 2019-10-14 | 2021-06-25 | 江西清华泰豪三波电机有限公司 | Device for filtering output line of motor |
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Application publication date: 20130320 |